User's Manual
Table Of Contents
- System Specifications
- System Utilities
- Machine Disassembly and Replacement
- Disassembly Requirements
- General Information
- External Module Disassembly Process
- Main Unit Disassembly Process
- Main Unit Disassembly Flowchart
- Removing the Hinge Covers
- Removing the Switch Cover
- Removing the Keyboard
- Removing the Speaker Module
- Removing the LCD Module
- Removing the Upper Cover
- Removing the Finger Print Reader
- Removing the TouchPad Bracket
- Removing the RTC Battery
- Removing the Bluetooth Module
- Removing the USB Board
- Removing the Modem Module
- Removing the Mainboard
- Removing the RJ-11 Port
- Removing the Thermal Module
- Removing the CPU
- LCD Module Disassembly Process
- LCD Module Reassembly Procedure
- Main Module Reassembly Procedure
- Replacing the CPU
- Replacing the Thermal Module
- Replacing the RJ-11 Port
- Replacing the Mainboard
- Removing the RTC Battery
- Replacing the USB Board
- Replacing the Bluetooth Board
- Replacing the Modem Module
- Replacing the TouchPad Bracket
- Replacing the Finger Print Reader
- Replacing the Upper Cover
- Replacing the LCD Module
- Replacing the Speaker Module
- Replacing the Keyboard
- Replacing the Switch Cover
- Replacing the Hinge Covers
- External Module Reassembly Process
- Troubleshooting
- Common Problems
- Power On Issue
- No Display Issue
- Random Loss of BIOS Settings
- LCD Failure
- Built-In Keyboard Failure
- Touchpad Failure
- Internal Speaker Failure
- Internal Microphone Failure
- HDD Not Operating Correctly
- ODD Failure
- USB Failure (Rightside)
- Modem Function Failure
- Wireless Function Failure
- Bluetooth Function Failure
- EasyTouch Button Failure
- Media Board Failure
- Fingerprint Reader Failure
- Thermal Unit Failure
- External Mouse Failure
- Other Failures
- Intermittent Problems
- Undetermined Problems
- POST Codes Tables
- Common Problems
- Jumper and Connector Locations
- FRU (Field Replaceable Unit) List
- Model Definition and Configuration
- Test Compatible Components
- Online Support Information
- Index
138 Chapter 4
Power On Issue
If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:
Computer Shutsdown Intermittently
If the system powers off at intervals, perform the following actions one at a time to correct the problem.
1. Check the power cable is properly connected to the computer and the electrical outlet.
2. Remove any extension cables between the computer and the outlet.
3. Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly
into a known good electrical outlet.
4. Disconnect the power and open the casing to check the Thermal Unit and fan airways are free of
obstructions.
5. Remove all external and non-essential hardware connected to the computer that are not necessary to
boot the computer to the failure point.
6. Remove any recently installed software.
7. If the Issue is still not resolved, see “Online Support Information” on page 211.